/* Martin Peticco design language v1.2. Shared CSS custom properties. */
:root {
  --bg: #ffffff;
  --panel: #f7f5fa;
  --ink: #18151c;
  --muted: #625c69;
  --line: #e6e1eb;
  --brand: #714195;
  --brand-dark: #4f286f;
  --gradient-angle: 55deg;
  --gradient-purple: #e5afec;
  --gradient-middle: #d0c3f0;
  --gradient-blue: #b2dbf8;
  --brand-gradient: linear-gradient(var(--gradient-angle), var(--gradient-purple) 0%, var(--gradient-middle) 48%, var(--gradient-blue) 100%);
  --header-gradient-purple: #f6e3f8;
  --header-gradient-middle: #efeafa;
  --header-gradient-blue: #e4f2fd;
  --header-gradient: linear-gradient(var(--gradient-angle), var(--header-gradient-purple) 0%, var(--header-gradient-middle) 48%, var(--header-gradient-blue) 100%);
  --font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --weight-light: 300;
  --weight-regular: 400;
  --weight-bold: 700;
  --maxw: 1080px;
}

/* KaRMA components mapped to the shared design language. */
:root{--faint:var(--muted);--accent:var(--brand);--good:#16a34a;--bad:#dc2626}
*{box-sizing:border-box}
html{font-size:106.25%;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--font-family);font-weight:400;
  line-height:1.6;-webkit-font-smoothing:antialiased;
}
a{color:#0000ee;text-decoration:underline}
a:not(.btn):visited{color:#551a8b}
a:not(.btn):active{color:#ff0000}
a:focus-visible,button:focus-visible,select:focus-visible,input:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:2px solid var(--brand);outline-offset:4px}
strong,b{font-weight:700}
input{accent-color:var(--brand)}
li::marker{color:var(--brand)}
h1,h2,h3{line-height:1.25;font-weight:300;letter-spacing:-.025em}
h3{font-size:1.2rem;font-weight:700;letter-spacing:-.01em}
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 22px}
.section{padding:46px 0}
.section h2{font-size:2rem;margin:0 0 20px}
.section h2::before{content:"";display:block;width:48px;height:3px;margin-bottom:14px;background:var(--brand-gradient)}
.section .lead{color:var(--muted);margin:0 0 26px;font-size:1rem}
.rule{height:1px;background:var(--line);border:0;margin:0}

/* ---- hero ---- */
.hero{
  width:calc(100% - 32px);max-width:var(--maxw);margin:24px auto 0;
  padding:28px 0 26px;text-align:left;background:var(--header-gradient);
  border-bottom:1px solid var(--line);border-radius:4px;
}
.hero .venue{font-size:.825rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--ink)}
.hero h1{font-size:clamp(2rem,4.4vw,3.1rem);font-weight:300;line-height:1.12;letter-spacing:-.03em;margin:12px 0 20px}
.hero .authors{margin:0 0 4px;font-size:1rem}
.hero .authors a{font-weight:400;white-space:nowrap}
.hero .affil{color:#49414f;font-size:.95rem}
.links{display:flex;gap:10px;justify-content:flex-end;flex-wrap:wrap;margin-top:16px}
.btn{
  display:inline-flex;align-items:center;gap:8px;text-decoration:none;
  background:var(--ink);color:#fff;border:1px solid var(--ink);border-radius:4px;
  padding:9px 20px;font-size:.95rem;font-weight:700;cursor:pointer;
}
.btn:hover{background:#000;color:#fff;text-decoration:none}
.btn svg{width:16px;height:16px;fill:currentColor}
.btn.ghost{background:#fff;color:var(--ink);border-color:var(--muted)}
.btn.ghost:hover{background:var(--panel);color:var(--ink)}
@media (min-width:801px){
  .hero .wrap{display:grid;grid-template-columns:minmax(0,1fr) auto;column-gap:28px}
  .hero .venue,.hero h1{grid-column:1 / -1}
  .hero .authors,.hero .affil{grid-column:1}
  .hero .links{grid-column:2;grid-row:3 / 5;align-self:end;margin-top:0}
}
.motivation-summary{font-size:1.5rem;font-weight:300;line-height:1.4;margin:0 0 24px}
.motivation-summary strong{color:var(--brand)}
.motivation-copy{margin:0 0 26px;padding-left:18px;border-left:3px solid transparent;border-image:var(--brand-gradient) 1}

/* ---- score cards ---- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:4px;padding:20px}
.card .k{font-weight:700;font-size:1.05rem}
.card .k .sub{color:var(--brand)}
.card p{margin:8px 0 0;color:var(--muted);font-size:.96rem}

/* ---- figures ---- */
figure{margin:0}
.fig{background:var(--bg);text-align:left;min-width:0}
.fig img{border-radius:4px;max-width:100%;height:auto;display:block;margin:0 auto}
.fig figcaption{color:var(--muted);font-size:.875rem;margin-top:12px}

/* ---- interactive viewer ---- */
.viewer-grid{display:grid;grid-template-columns:1fr;gap:14px}
.viewer-controls{display:flex;flex-wrap:wrap;gap:14px;align-items:center;font-size:.95rem}
.viewer-controls select{
  font:inherit;padding:7px 10px;border:1px solid var(--line);border-radius:4px;background:#fff;color:var(--ink);
}
.viewer-controls label{display:inline-flex;align-items:center;gap:6px;color:var(--muted);cursor:pointer}
.viewer-meta{color:var(--faint);font-size:.9rem}
.stage{
  position:relative;width:100%;height:520px;border:1px solid var(--line);border-radius:4px;
  background:radial-gradient(circle at 50% 38%,#ffffff 0%,var(--panel) 100%);overflow:hidden;
}
.stage canvas{display:block;touch-action:none}
.stage .hint{position:absolute;left:14px;bottom:12px;font-size:.8rem;color:var(--faint);pointer-events:none}
.legend{
  position:absolute;right:14px;bottom:12px;background:rgba(255,255,255,.9);
  border:1px solid var(--line);border-radius:4px;padding:8px 10px;font-size:.78rem;color:var(--muted);
}
.legend .ramp{height:9px;width:130px;border-radius:5px;margin:5px 0 2px;
  background:linear-gradient(90deg,rgb(255,50,50),rgb(255,255,50),rgb(50,255,50))}
.legend .ends{display:flex;justify-content:space-between}
.legend .legend-note{margin-top:5px;max-width:150px;line-height:1.3;color:var(--faint);font-size:.72rem}

/* ---- compare mode ---- */
.cmp-controls{display:flex;flex-wrap:wrap;gap:16px;align-items:center;font-size:.95rem;margin-bottom:14px}
.cmp-controls select{font:inherit;padding:6px 9px;border:1px solid var(--line);border-radius:4px;background:#fff;color:var(--ink)}
.cmp-controls label{display:inline-flex;align-items:center;gap:6px;color:var(--muted);cursor:pointer}
.legend-inline{display:inline-flex;align-items:center;gap:8px;color:var(--faint);font-size:.82rem;margin-left:auto}
.legend-inline .ramp{display:inline-block;height:9px;width:110px;border-radius:5px;
  background:linear-gradient(90deg,rgb(255,50,50),rgb(255,255,50),rgb(50,255,50))}
.cmp-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.cmp-panel{min-width:0}
.cmp-head{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.cmp-head select{font:inherit;font-weight:700;padding:6px 9px;border:1px solid var(--line);border-radius:4px;background:#fff;color:var(--ink)}
.cmp-head .viewer-meta{font-size:.82rem}
.cmp-panel .stage{height:420px}

/* ---- hand in motion ---- */
.anim-btn{font:inherit;font-size:.9rem;padding:6px 14px;border:1px solid var(--line);border-radius:4px;
  background:#fff;color:var(--ink);cursor:pointer}
.anim-btn:hover{border-color:var(--muted)}
.anim-mode{position:absolute;left:18px;top:15px;display:flex;flex-direction:column;gap:1px;pointer-events:none;max-width:62%}
.anim-mode .am-word{font-size:1.3rem;font-weight:700;color:var(--ink);letter-spacing:.01em;line-height:1.15}
.anim-mode .am-sub{font-size:.82rem;font-weight:700;color:var(--muted);line-height:1.3}
.anim-mode .am-tag{font-size:.78rem;font-weight:700;color:var(--faint);line-height:1.3}

/* ---- compare example note (set apart from the how-to-read lead) ---- */
.cmp-example{color:var(--muted);max-width:60em;margin:16px 0 2px;padding-top:16px;border-top:1px solid var(--line);font-size:.98rem}

/* ---- score cards (KaRMA-T/R/S), kept flat and restrained ---- */
.score-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:24px 0 0}
.score-card{border:1px solid var(--line);border-radius:4px;padding:15px 16px;background:#fff}
.score-tag{font-family:inherit;font-size:.875rem;font-weight:700;color:var(--brand);letter-spacing:.01em}
.score-name{font-weight:700;color:var(--ink);margin:3px 0 6px;font-size:1rem}
.score-card p{margin:0;color:var(--muted);font-size:.9rem;line-height:1.5}

/* ---- suggested comparisons ---- */
.tryouts{margin-top:18px;border:1px solid var(--line);border-radius:4px;background:var(--panel)}
.tryouts summary{cursor:pointer;padding:12px 16px;font-weight:700;color:var(--ink);list-style:none;user-select:none}
.tryouts summary::-webkit-details-marker{display:none}
.tryouts summary::before{content:"▸";color:var(--muted);display:inline-block;width:1.1em}
.tryouts[open] summary::before{content:"▾"}
.tryout-intro{margin:0 16px 10px;color:var(--muted);font-size:.9rem}
.tryout-list{display:flex;flex-direction:column;gap:8px;padding:0 12px 12px}
.tryout{display:block;text-align:left;background:#fff;border:1px solid var(--line);border-radius:4px;
  padding:11px 13px;cursor:pointer;font:inherit;width:100%}
.tryout:hover{border-color:var(--brand);background:var(--panel)}
.tryout-name{display:block;font-weight:700;color:var(--ink);margin-bottom:1px}
.tryout-sub{display:block;color:var(--brand);font-size:.8rem;font-weight:700;margin-bottom:6px}
.tryout-note{display:block;color:var(--muted);font-size:.9rem;line-height:1.45}

/* ---- stat highlights ---- */
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:8px}
.stat{border-left:3px solid transparent;border-image:var(--brand-gradient) 1;background:var(--panel);padding:12px 18px}
.stat b{font-size:1.5rem;display:block;color:var(--brand)}
.stat span{color:var(--muted);font-size:.92rem}

/* ---- leaderboard ---- */
.lb-toolbar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:12px}
.lb-toolbar .label{color:var(--muted);font-size:.92rem}
.sort-btn{
  border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:4px;
  padding:6px 13px;font:inherit;font-size:.9rem;font-weight:700;cursor:pointer;
}
.sort-btn.active{background:var(--brand);color:#fff;border-color:var(--brand)}
.lb-toolbar .spacer{flex:1}
.toggle-cols{color:var(--brand);background:none;border:0;font:inherit;font-weight:700;cursor:pointer}
.lb-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:4px}
.lb-scroll::before,.table-scroll::before{content:"";display:block;height:3px;background:var(--brand-gradient)}
table.lb{font-variant-numeric:tabular-nums;border-collapse:separate;border-spacing:0;width:100%;font-size:.92rem;min-width:560px}
table.lb th,table.lb td{padding:9px 12px;text-align:right;white-space:nowrap;border-bottom:1px solid var(--line)}
table.lb thead th{
  position:sticky;top:0;background:var(--panel);z-index:2;font-weight:700;color:var(--muted);
  cursor:pointer;user-select:none;
}
table.lb thead th a{text-decoration:underline;text-decoration-style:dotted;text-underline-offset:2px}
table.lb th.hand,table.lb td.hand{text-align:left;position:sticky;left:0;background:#fff;z-index:1;font-weight:700}
table.lb thead th.hand{z-index:3;background:var(--panel)}
table.lb tbody tr{cursor:pointer}
table.lb tbody tr:hover td{background:var(--panel)}
table.lb tbody tr:hover td.hand{background:var(--panel)}
table.lb td.rank{color:var(--faint);width:38px;text-align:center}
table.lb .dag{color:var(--accent);font-weight:700}
.lb-col-extra{display:none}
table.lb.show-extra .lb-col-extra{display:table-cell}
.lb-note{color:var(--muted);font-size:.85rem;margin-top:10px}

/* ---- ablation mini table ---- */
.table-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:4px}
.table-scroll table{margin:0;font-variant-numeric:tabular-nums}
table.mini thead{background:var(--panel)}
table.mini tbody tr:last-child td,table.lb tbody tr:last-child td{border-bottom:0}
table.mini{border-collapse:collapse;width:100%;font-size:.9rem;margin-top:6px}
table.mini th,table.mini td{padding:7px 10px;border-bottom:1px solid var(--line);text-align:right}
table.mini th:first-child,table.mini td:first-child{text-align:left;font-weight:700}
table.mini thead th{color:var(--muted);font-weight:700}

/* ---- code / bibtex ---- */
pre{
  background:var(--panel);color:var(--ink);border:1px solid var(--line);border-radius:4px;padding:42px 18px 18px;overflow-x:auto;
  font-size:.86rem;line-height:1.55;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
}
pre code{white-space:pre}
.code-block{position:relative}
.copy-row{position:absolute;right:8px;top:8px;z-index:1}
.copy-btn{background:var(--ink);color:#fff;border:1px solid var(--ink);font-family:inherit;font-weight:700;border-radius:4px;padding:5px 11px;font-size:.8rem;cursor:pointer}
.copy-btn:hover{background:#000}

/* ---- callout / scope ---- */
.callout{background:var(--panel);border:1px solid var(--line);border-left:3px solid transparent;border-image:var(--brand-gradient) 1;
  border-radius:4px;padding:16px 18px;color:var(--ink)}
.two-col{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:22px}
.two-col > *{min-width:0}

/* ---- footer ---- */
footer{border-top:1px solid var(--line);padding:28px 0 40px;color:var(--muted);font-size:.88rem;text-align:center}

@media (max-width:800px){
  .two-col,.cmp-grid{grid-template-columns:minmax(0,1fr)}
  .stage,.cmp-panel .stage{height:70vw;min-height:320px;max-height:520px}
  .legend-inline{margin-left:0;flex-wrap:wrap}
  .cmp-head{flex-wrap:wrap}
}
@media (max-width:600px){
  .wrap{padding:0 20px}
  .hero h1{font-size:2rem}
  .hero .authors{line-height:1.9}
  .section{padding:32px 0}
  .section h2{font-size:1.75rem}
  .cards,.stats,.score-cards{grid-template-columns:minmax(0,1fr);gap:24px}
  .motivation-summary{font-size:1.3rem}
  .btn{padding:9px 16px}
  .cmp-controls,.viewer-controls{gap:12px}
  select{max-width:100%}
  table.mini{min-width:430px}
}